I am using Payeezy Payment gateway [First Data] If i try to void in back-end order section, i get error message Void Failed: Authorization Not Found How can i solve the issue and void the order?
How old is the transaction you are trying to refund/void? Do you have that transaction in Payment gateways. Can you also check the status of the transaction?
If transaction is < 24 hours or not settled you may see such issues as code might be trying to issue a refund on a non-settled transaction.